Editorial
Changes in cognition following cardiac surgery
| The first 150 words of the full text of this article appear below. |
As the mortality rates following cardiac surgery have declined, increasing interest has been focused on morbidity. One area of morbidity that has received growing attention is the impact of cardiac surgery on the brain. The incidence of stroke has now declined and tends to occur in about 1-3% of cases.1 Neuropsychological assessment of patients' cognitive changes following cardiac surgery have been shown to provide a sensitive tool for assessing the impact of, and innovations in, cardiac surgery.
Incidence of neuropsychological deficits following cardiac surgeryInitially, the purpose of early research into cardiac surgery was
to ascertain whether a neuropsychological problem existed after cardiac
surgery. This work established that a significant proportion of
patients undergoing cardiac surgery exhibit postoperative neuropsychological deficits, which may persist in a number of patients.2 The reported incidence, however, varies widely
and this inconsistency has been attributed to a number of factors: the
number, type, sensitivity, and
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